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Old 10-29-2011, 03:50 PM   #1
ledsled87
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Default What is the best gas engine in a class C rv?

What is the "best" all around? The Ford 460, V10, or the Chevy 454, the 8.1, or the 6.0 ls engine? I know gas milage will suck no matter what....

I also know 80% are going to be a Ford based chassis, but is it worth waiting and shopping for the Chevrolet chassis and engine? Now I know that people are going to be brand loyal, but I want whats best for the job. I am a Chevy guy, but if Ford has the best drivetrain, so be it. Thanks for the input.
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Old 10-29-2011, 03:56 PM   #2
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Default Re: What is the best gas engine in a class C rv?

The 460 by far. IMO. It just has the TQ to get the job done.
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Old 10-29-2011, 06:24 PM   #3
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Default Re: What is the best gas engine in a class C rv?

I would avoid the 8.1 due to massive oil consumption.........the 6.0 LS engine is a great engine just underpowered for the job.
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Old 10-29-2011, 06:33 PM   #4
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Default Re: What is the best gas engine in a class C rv?

I like diesel. But for gas, I've heard good things about the v10 Ford.
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Old 10-29-2011, 06:36 PM   #5
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Default Re: What is the best gas engine in a class C rv?

one that's been swapped out for a Diesel!

lol
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Old 10-29-2011, 06:44 PM   #6
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Default Re: What is the best gas engine in a class C rv?

The 460s are notorious for exhaust port and manifold issues. I have a 1996 with a 460 with 52,000 miles on it and I ended up with this the other day. Apparently it happened prior to my buying it and it was hard to locate a decent F3 series head for it. Lots of pre-93 fuel injection E series heads. I got lucky and found one at Advance Auto they had in stock nearby but lots of cylinder head guys, salvage yards, etc all told me how hard they were to get.

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Old 10-29-2011, 07:43 PM   #7
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Default Re: What is the best gas engine in a class C rv?

Imho, look for one with the V-10...good power and best mileage. I've never seen a 460 head break like the pic above but, the 460's are bad about blowing manifold gaskets out. I always have the manifolds flat milled then clean the heads really good and use Walker black exhaust sealant between the two...no gasket or anymore problems after that. The BBC's have nearly the same exhaust problems too.
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Old 10-29-2011, 07:54 PM   #8
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Default Re: What is the best gas engine in a class C rv?

I have a 1999 class C 25' with a V-10 and love it. We pull a 26' trailer and get 8mpg towing at 65-70mph. Even at 98 degrees outside temperature the temp gauge never went up to halfway. The biggest downfall that I see with the Ford is the brakes. They tend to heat up in stop and go traffic. If anyone know what to do to solve the problem, I would appreciate knowing what to do.
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Old 10-29-2011, 10:38 PM   #9
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Default Re: What is the best gas engine in a class C rv?

Good info. So the v10 is the deal?
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Old 10-29-2011, 10:50 PM   #10
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Default Re: What is the best gas engine in a class C rv?

I have heard many folks being very favorable to a V10 over a 460.

I own a V10 class A and an 8.1 class A. They have a very different feel to them. The V10 likes to REV, the 8.1 is more of a lug monster. Personally, I think the Ford powered chassis is easier to drive.

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Old 10-29-2011, 10:57 PM   #11
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Default Re: What is the best gas engine in a class C rv?

i had a carb 454,
we put the stainless exhaust manifolds. had the carb and dist recurved by a local stock racer.. and that sob was great never had any issues and pulled a 11,000pnd trailer all over the country for 6years.. i did 64,000 miles and two transmissions. last trans was right before i sold it.
gas mileage was 4-7 mpg but i was in my whole set up around 14g so it takes shit ton of gas to justify just the price of a new truck..
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Old 10-29-2011, 10:58 PM   #12
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Default Re: What is the best gas engine in a class C rv?

I'm a mechanic for the city. Along with everything else we maintain the bus fleet. They use several E450s for handicap transportation. I cant speak for the GM engine in this application but we have been using the v10 Ford since it came out and the 460 before that. I'm a Chevy guy but that v10 is one tough engine. These drivers go balls to the wall 12 hrs a day in city traffic and I have yet to see a major problem occur. Most of them have upwards of 140k miles. Only problem I see may be an occasional coil or broken exhaust stud.
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Old 10-29-2011, 11:08 PM   #13
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Default Re: What is the best gas engine in a class C rv?

For a gasser, cant beat the V10.. I see lots of them with 200K miles with no issues ( and these things get beat on )...
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Old 10-30-2011, 12:23 AM   #14
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Default Re: What is the best gas engine in a class C rv?

Wow, the city stuff is a true test of reliability for sure. People driving that stuff do not care at all.... If it breaks, they just put it out and get another rig....
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Old 10-30-2011, 12:42 AM   #15
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Default Re: What is the best gas engine in a class C rv?

By one blowed up and stick in a 500 Cadillac! WINNER!
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